Posted by John T on March 19, 2012 at 10:18:09 from (71.52.192.218):
In Reply to: 140 Generator posted by RTR on March 19, 2012 at 10:07:16:
I wouldnt call this foolproof and its far from perfect, but if you work through it, especially Para 5 where it shows how to full field the genny which by passes any Voltage Regulator or Cutout Relay problems, it ought to tell you if the genny is bad versus the VR etc. The Motor test also shows how to determine with a good probability whether the genny itself is good or not, as if it passes BOTH tests it will usualy charge.
As always, the Genny and the VR or Cutout Relay and the light switch (LHBD switches) allllllll require good grounds and its good to Polarize the genny if in doubt before start up if the system has been worked on.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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